Soaps
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                            LC4.5.3.1                                                                                
                                                Production of soap via alkaline saponification  
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                            LC4.5.3.1C                                                                                
                                                Production of soap via alkaline saponification - Digital  
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                            LC4.5.3.2                                                                                
                                                Producing soap using sodium carbonate  
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                            LC4.5.3.3                                                                                
                                                The function of dishwashing liquid  
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